.view {
    background-image: url(../../img/shouye.png);
    background-size: 100% 100%;
    height: 100%;
    width: 100%;
    margin: 0 auto;
}
#startbtn{
    margin:0 auto;
    margin-top: 125%;
    width: 30%;
    height: 5%;
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-align: center;
    line-height: 24px;
    border: 1px solid #cecaf9;
}